JAVA Httpclient3.x与Httpclient4.x代码对比（post方法）

Httpclient4.x post方法代码：

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.UnsupportedEncodingException;
import java.util.ArrayList;
import java.util.List;
import org.apache.http.Consts;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.ParseException;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.util.EntityUtils;

public class test01 {
     public static void main(String argv[]){
            HttpClient client=new DefaultHttpClient();
            List<BasicNameValuePair> formparams = new ArrayList<BasicNameValuePair>();
            formparams.add(new BasicNameValuePair("money", "xx"));
            formparams.add(new BasicNameValuePair("tele_num", "xxxxxxxxxxx"));
            UrlEncodedFormEntity entity = new UrlEncodedFormEntity(formparams, Consts.UTF_8);
            HttpPost httppost = new HttpPost("http://xxxx.xxxxxx.xx/xxx/xxxxxx");
            httppost.setEntity(entity);

            HttpResponse response = null;
            try {
                response = client.execute(httppost);
            } catch (ClientProtocolException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            } catch (IOException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
            //打印服务器返回的状态
               
            System.out.println(response.getStatusLine());
            HttpEntity Entity = response.getEntity();
            //打印结果页面
           
            try {
                System.out.println("Response is :"+EntityUtils.toString(Entity));
            } catch (ParseException e1) {
                // TODO Auto-generated catch block
                e1.printStackTrace();
            } catch (IOException e1) {
                // TODO Auto-generated catch block
                e1.printStackTrace();
            }
            if(Entity!=null){
                System.out.println("The Response length is :"+Entity.getContentLength());
            }
      }
}

Httpclient3.x post方法代码：

import java.io.IOException;
import java.io.UnsupportedEncodingException;
import org.apache.commons.httpclient.HttpClient;
import org.apache.commons.httpclient.HttpException;
import org.apache.commons.httpclient.NameValuePair;
import org.apache.commons.httpclient.methods.PostMethod;


public class test02 {
      public static void main(String argv[]){
            HttpClient client = new HttpClient();
            client.getHostConfiguration().setHost("xxxx.xxxxxx.xx", 80, "http");
            PostMethod post = new PostMethod("http://xxxx.xxxxxx.xx/xxx/xxxxxx");
            NameValuePair money = new NameValuePair("money","xx");
            NameValuePair tele_num = new NameValuePair("tele_num", "xxxxxxxxxxx");    
            post.setRequestBody(new NameValuePair[] { money, tele_num});

            try {
                client.executeMethod(post);
            } catch (HttpException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            } catch (IOException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
            //打印服务器返回的状态
            System.out.println("服务器返回的状态是: "+post.getStatusLine());
            //打印结果页面
            String response = null;
            try {
                response = new String(post.getResponseBodyAsString().getBytes("UTF-8"));
            } catch (UnsupportedEncodingException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            } catch (IOException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
            //打印返回的信息
            System.out.println("返回的信息是: "+response);
            post.releaseConnection();
            
      }
}

附参考：http://hc.apache.org/httpcomponents-client-ga/tutorial/html/